Update Homebrew formula and lockfile for 1.5.0.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: jharrilim

Cargo.lock

@@ -1,6 +1,6 @@
 .ie \n(.g .ds Aq \(aq
 .el .ds Aq '
-.TH git-b 1  "git-b 1.4.0" 
+.TH git-b 1  "git-b 1.5.0" 
 .SH NAME
 git\-b \- Fuzzy git branch picker.
 .SH SYNOPSIS
@@ -29,6 +29,6 @@ Print version
 [\fIBRANCH\fR]
 Branch name to fuzzy\-match and checkout directly (skips the picker)
 .SH VERSION
-v1.4.0
+v1.5.0
 .SH AUTHORS
 Joseph Harrison\-Lim <josephharrisonlim@gmail.com>